This fabric flash mug rug pattern is made using fabric selvages. They are bright, graphic, and colorful, and it’s a wonderful way to use every scrap of your fabric!
Draw three 45° lines on the batting. These will be a guide for the angle to sew the selvedge strips. The lines will be completely covered in the end so they don’t need to be perfectly spaced.
Pin the first selvedge strip to the top left corner of the batting, making sure it extends a little beyond the edges of the batting and using the drawn lines as a guide for the angle.